Oestrogen Flashcards
Which types of Oestrogens are found in the liver from oestradiol
- Estrone
- estriol
Classify oestrogen drugs
- Natural oestrogen
- Synthetic - 1. steroidal 2. nonsteroidal
Name natural oestrogens
- Estradiol
- Estriol
- Estrone
Name synthetic steroidal oestrogens
- Ethinyl Estradiol
- Mestranol
- Tibolone
Name synthetic nonsteroidal estrogens
- Diethylstilbestrol
- Dienestrol
What are the actions of oestrogen
- Development of Sex organs in females
- Proliferative phase of endometrium
- contractions of fallopian tube and myometrium
- cervical secretions are thin
- stimulates growth of breasts
- decrease the rate of reabsorption of bone, increase HDL, sodium water retention
- enhance coagulability of blood by increasing clotting factors 2, 7, 9, 10
- induced synthesis of progesterone receptors
What are the actions of progestins
- Maintain pregnancy
- secretory phase of endometrium
- decrease tubal motility and uterine contractions
- cervical mucus becomes thick
- stimulates proliferation of breast acini
- decrease glucose tolerance, increase LDL, stimulate lipoprotein lipase, sodium and water retention.
- increase body temperature
- inhibit synthesis of oestrogen receptors
What are therapeutic uses of oestrogen
- Oral contraception
- post menopausal hormone replacement therapy
- senile vaginitis
- dysmenorrhoea
- delayed puberty in girls (turner’s) syndrome and hypopituitarism
- carcinoma of prostate
In hormone replacement therapy, in which condition is oestrogen used alone in women
Women who have had Hysterectomy
What are the drawbacks of hormone replacement therapy
- Uterine bleeding
- Venous thromboembolism
- gall stones
- mood changes
- breast cancer
Which drug has both osteogenic, progestogenic, And weekend and activities and does not cause endometrial proliferation can be used for HRT without cyclic progesterone
Tibolone
What are the adverse affects of using oestrogen
- oedema
- weight gain
- nausea, vomiting
- breast tenderness
- endometrial and breast cancer
- thromboembolic complications
- increased incidence of gall stones
- liver disease
Name anti-estrogen
- Clomiphene citrate
- Fluvestrant
- Tamoxifen
- raloxifene
- Ormeloxifene
Name oestrogen receptors
- ER -alpha
- ER- beta
What are the Uses of Clomiphene citrate
- Infertility
- assisted reproduction therapy ART and gamete intra-fallopian transfer technique GIFT
- Male infertility